Pressure indicator transmitters have a digital indicator for providing a local indication of pressure reading, and a 4-20 milliamp output pressure transmitter for sending an analogue signal to control & monitoring instrumentation.
The built-in digital indicators can be scaled via push buttons or adjustment pots to any pressure unit or a 0-100% full scaling.
No additional external supply is required, since the digital indicator is powered by the 4-20mA current loop from the pressure transmitter.
16 bar, 200°C steam pressure transmitter and gauge - Combined pressure transmitter and indicator in one package with the option for use with high temperature media such as steam at 200°C
Low pressure methane gas transmitter with display and switch - I am looking for a 4-20mA pressure transmitter device for measuring the pressure of methane (CH4) gas up to 160 mbar gauge.
- 10 bar g steam pressure transmitter, indicator and PNP switch - Steam pressure transmitter with LED display indicator for measuring 0 to 10 bars with in-built temperature reducer
- Autoclave pressure sensor and display with 10 bar range - We are looking for a autoclave pressure sensor and display for connecting to a laboratory steam sterilising autoclave and operates at about 10 bar @160°C
- 10 metre high cylindrical oil tank level gauge and transmitter - Sensor and display for converting a pressure reading to a level reading of a 10 metre high cylindrical oil tank.
- Hot oil pressure transmitter & display to read up to 5 bar at 300degC max - Pressure transmitter with an integral LED loop powered digital display for use with hot oil up to 300 deg. C (max.) over a pressure range of 0-5 bar gauge.
DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
DS201 Combined Pressure Sensor, Display and Switch- DS200 Combined Pressure Switch, Gauge and Sensor
LEO3 Current or Digital Output Pressure Gauge
- Hastelloy diaphragm -100 to 50 kPa g range manometer
- Truck loading monitoring using air cushion pressure
- Low vacuum leak detection 4-20mA current loop sensor & gauge
- 20 mbarg digital display air pressure indicator and transmitter with 1/4 NPT male fitting
- 20 MPa g range 4-20mA output high pressure sensor and plug-on display for hydraulic control use
- 500psig 4-20mA freshwater display, switch and pressure sensor for building management use
DS210 Combined Low Pressure Switch, Indicator and Sensor
DS201P High Range Flush Pressure Gauge, Switch and Sensor
- 250psig air regulator pressure gauge with 4-20mA output and 1/4 NPT male fitting
- 3inH2O differential 4-20mA nitrogen pressure sensor and display for annealing furnace flow control use
- -15psig 0-10V out negative pressure transducer and display for air extraction use
- 600 barg freshwater booster pump pressure switch, gauge and transmitter
- -0.1 to +0.1 inH2O g range 4-20mA signal air pressure sensor and display for pharmaceutical manufacturing use
- Combined readout and transmitter for measuring up to 250 bar Methane gas
Product Help
Specifying pressure indicator transmitter features
Indicator type
A pressure indicator transmitter includes a built-in pressure gauge for reading in-situ.
Do you require LCD, backlit LCD, or an LED display?
A display can be configured to display the pressure reading in different pressure units, or as a % full scale, the 4-20mA output, alarm levels, and calibration values.
Output signal
Typically a pressure transmitter with a built-in display indicator will have a 4-20mA 2 wire current loop signal. This 4-20mA signal may include intrinsically safe or flameproof certification for hazardous areas, and HART communications for use in a process plant with other HART enabled devices.
Alarm switch
Since there is a built-in display it is possible to add alarm contact switches on some pressure indicator transmitters which are easily configurable via the display and menu keys.
The contact switches are normally a solid state type such as PNP or NPN, which keeps the size and wiring to a minimum.
Re-calibration
Depending on the product type it is possible to re-calibrate the 4-20mA output signal and the display reading by adjusting the zero and span setting via the display panel menu buttons.
Turn-down ratio
Turn-down the output signal to re-scale the measured range. The turndown ratio defines how low the range can be reduced. A ratio of 3:1 or 4:1 is possible with simpler lower cost transmitters, and increases to 10:1 or 100:1 with more expensive intelligent transmitters.
Will the pressure indicating transmitter need to be moved or re-purposed to measure over a different range?
Checklist for pressure indicator transmitter requirements
Define your pressure indicator transmitter requirements using this checklist:
- Indicator type?
- Output signal?
- Alarm switch?
- Re-calibration?
- Turn-down ratio?
- Pressure range?
- Electrical connection?
- Process connection?